You need a newer version of DockbarX (or alternatively a version of Nautilus that has no error in it's translations). Webupd8:s ppa is more up to date for lucid than the official DockbarX ppa is. Try that one.

sorry, I got a problem. I like your stuff, but the right mouse on dockbarx icon don't work and applications won't work. As far I know, my mouse work very well. I use it on awn, but I got the same issue on the gnome panel...

Post ~/.dockbarx/log/dockbarx.log (or dockbarx.log.1 if you restarted dockbarx sicne the last crash and so on) and tell me how you installed DockbarX, via DockbarX ppa, webupd8's ppa, manually or some other way.